Throttle Position Sensor: Testing and Inspection

1UR-FSE ENGINE CONTROL SYSTEM: THROTTLE BODY: ON-VEHICLE INSPECTION

ON-VEHICLE INSPECTION

1. CHECK THROTTLE BODY ASSEMBLY
(a) Check the throttle position sensor.
(1) Connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Turn the tester on.
(4) Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Sensor Position.
(5) Start the engine.
(6) Firmly depress the brake pedal with your left foot, and move the shift lever to D.
NOTE:
Set the parking brake to fix the wheels in place.
(7) Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of the "THROTTLE POS (Throttle Sensor Position)" is within the specification.
Standard throttle valve opening percentage:
60% or more
HINT: When checking the standard throttle valve opening percentage, the shift lever should be in the N position.
- If the percentage is less than 60%, replace the throttle body assembly.